Design patterns are known for their usefulness to solve recurrent problems. Design patterns are a way of transmitting knowledge and experience by using proven, high quality solutions. A problem that emerges when using design patterns is that it is not clear how to measure the impact that has its application on the source code. The relationships between metrics and design patterns is not clear. We propose an experiment for measuring the usefulness of metrics and their success in predicting correct usage of design patterns. With this experiment we will explore which metrics capture best the relationship of design patterns quality of the source code. By using those metrics we will make predictions about the correct usage of the design patterns. In this experiment the selected metrics were not a good predictor, however it is a starting point to explore more metrics and their relationships with design patterns.